Rod,
Where are you finding reference to 1958 horns being 336 & 337 ??? I've got 6 different parts books from 1956 to 1963 and those numbers are no where to be found...
My parts books do list 987695 as "HORN UNIT...1958 HI Note", but don't list what the stamped number would be...
What can you add?
Mike B
